The Wilson Triad® XP3 tennis racquet includes improvements to the racquets aesthetics as well as its performance. This oversized frame works to provide players with immense power and the Isozorb cushioning cushioning weve seen in previous Triad models. The Triad® technology continues to provide superior shock absorption without sacrificing power. Sony Smart Tennis Sensor -compatible with the SO1 adapter ring. Oversized frame size. Continues as a light and powerful frame with supreme shock dampening for tennis elbow sufferers.